Jon Tofte
TVWBB 1-Star Olympian
edit: I'm not real sure about the grates that are on there. I'm wondering how much work they are to keep them clean vs front-to-back cast iron or SS rod. That's maybe the only area I'd change, but not having cooked on those grates its hard to say for sure.
The crosshatch grate in the one picture is a Weber Crafted Kitchen accessory that I already had and use on my 1st gen Summit.

It is a bit of a pain to clean, but I enjoy using it occasionally nonetheless.
The original grate set is regular cast iron, flatter on one side and thin on the other. I do agree that thick stainless rods would be easier to maintain.